de.lmu.ifi.dbs.elki.logging.statistics

Class AtomicLongCounter

java.lang.Object

de.lmu.ifi.dbs.elki.logging.statistics.AbstractStatistic

de.lmu.ifi.dbs.elki.logging.statistics.AtomicLongCounter

All Implemented Interfaces:

Counter, Statistic

public class AtomicLongCounter
extends AbstractStatistic
implements Counter

Class to count events in a thread-safe counter.

Since:

0.6.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.concurrent.atomic.AtomicLong	counter The counter to use.

Fields inherited from class de.lmu.ifi.dbs.elki.logging.statistics.AbstractStatistic

key

Constructor Summary

Constructors

Constructor and Description
AtomicLongCounter(java.lang.String key) Constructor.

Method Summary

Modifier and Type	Method and Description
long	decrement() Decrement the counter.
java.lang.String	formatValue() Get a formatted version of the value, for output.
long	getValue() Get the current count.
long	increment() Increment the counter.
long	increment(long i) Increment the counter by i.

Methods inherited from class de.lmu.ifi.dbs.elki.logging.statistics.AbstractStatistic

getKey, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.lmu.ifi.dbs.elki.logging.statistics.Statistic

getKey

Field Detail

counter

java.util.concurrent.atomic.AtomicLong counter

The counter to use.

Constructor Detail

AtomicLongCounter

public AtomicLongCounter(java.lang.String key)

Constructor.

Parameters:

key - Key to report.

Method Detail

increment

public long increment()

Description copied from interface: Counter

Increment the counter.

Specified by:

increment in interface Counter

Returns:

Current value.

decrement

public long decrement()

Description copied from interface: Counter

Decrement the counter.

Specified by:

decrement in interface Counter

Returns:

Current value.

increment

public long increment(long i)

Description copied from interface: Counter

Increment the counter by i. Note: the increment may be negative!

Specified by:

increment in interface Counter

Parameters:

i - increment.

Returns:

Current count.

getValue

public long getValue()

Description copied from interface: Counter

Get the current count.

Specified by:

getValue in interface Counter

Returns:

Current count.

formatValue

public java.lang.String formatValue()

Description copied from interface: Statistic

Get a formatted version of the value, for output.

Specified by:

formatValue in interface Statistic

Returns:

Value